Is anyone else experiencing errors with instanced rendering on NVidia drivers with OpenGL 2.1? I have objects randomly dancing around the screen, as if the matrix data in the uniform buffer is not being updated from the last batch. I tried an old application of mine that was working fine a year ago, and it displays the same error. The driver is 190.62 (the latest).

Alfonse Reinheart

09-16-2009, 01:03 PM

What kind of instancing are you using?

JoshKlint

09-16-2009, 01:21 PM

glDrawElementsInstancedARB() and using uniform buffers for storing the matrices.

I think this is a uniform buffer bug because it does not occur when I store the data in a float texture.